Wagon-brake.



PATENTED MAY l5, 1906. T. N. JOHNSEN.

l.WAGON BRAKE.

APPLICATION FILED JUNE 2, 1905.

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TORIS N. J'OHNSEN, OF

WILBUR, WASHINGTON.

WAGON-BRAKE.

ivo. 820,875.

Specification of Letters Patent.

Patented May 15, 1906.

Application filed June 2,1905. Serial No. 263,400.

To @ZZ whom it may concern:

Be it known that I, Toms N. JoHNsnN, a citizen of the United States, and a resident of I/Vilbur, in the county of Lincoln and State of Washington, have made certain new and useful Improvements in Wagon-Brakes, of which the following is a specification.

My invention is an improvement in automatic wagon-brakes; and it consists in certain novel constructions and combinations of parts hereinafter described and claimed.

Referring to the drawings forming a part hereof, Figure 1 is a side elevation with the near wheels removed. Fig. 2 is a bottom plan view. Fig. 3 is a detail section on the line 3 3 of Fig. 1. Fig. 4 is a detail section of the roller-bearing.

In the practical application of my invention I provide a wagon comprising front and rear axles A A havin' the hounds C C and connected by the coupIingpole B.

The bolsters D are secured to the front and rear axles in the ordinary manner, and standarcls d, having the form shown in Fig. 4, are secured to the ends of the bolsters. The standards are the same in construction, and a description of one will sul'lice for all. Each standard d is formed of a plate having the perforations do and the opening d, and in the latter is j ournaled the roller d2 with its axis perpendicular to the bolster.

In the lower perforations d of the opposite standards is journaled a roller d3 longitudinally of the bolster, upon which rests the Wagon-body E, the sides thereof being engaged by the perpendicular rollers d2. This construction of bed-support is used in wagons of heavy draft; but in those of lighter draft I provide a spring d3, journaled beneath the wagon-bed and having its outer ends bent upwardly and outwardly to engage the upper perforation d in the standards, two spings being provided at each end of the be Brackets e are secured to the wagon-bed adjacent to the rear wheels, and secured to the coupling-pole and rear hounds is a crossbar c, provided at either end with the transverse bolts e2, having upper and lower eyes c3 et. To the upper e es are attached the yokes e, having journa ed in the arms thereof the rollers e, engaging the brackets e, and to thelower eyes e4 are attached links e0.

w A brake-beam e8, provided with the eyebolts e7, engaging the links e on the bolts c2, depends therefrom below the coupling-pole and is provided at either end with the brakeshoes e.

A rock-shaft c is journaled in bars el on the rear axle and is provided at its outer ends with upwardly-extending arms c, engaging quadrant-shaped brackets cl2, provided with the transverse perforations ex. An arm ew, depending from the rock-shaft e, is connected by a rod el6 to the brake-beam- The operation of my improvement is en* tirely automatic. When moving on level ground, the relation of the parts is unchanged but on starting down an incline the bed tends to swing forward when sp1-in g-supported or to roll forward when on the rollers, rocking the rock-shaft and drawing the brake-beam to the rear, thus pressing the shoes against the peripheries of the wheels. As soon as level ground is reached the bed swings or rolls back, rocking the rock-shaft in the reverse direction, releasing the brake-shoes.

The power of the brake may be regulated by pushing the upward]y-extending arms of the rockeshaft forward and securing them in their adjusted position by a pin through the perforations.

The provision of the rollers in the stand-' ards removes all friction between the bed and the standard and also rovides an efficient support against outwar pressure.

By swinging the brake-beam from the bed I prevent downward strain on the couplingpole, while at the same time the cross-bar retains the brake-beam in 'fixed parallel rela tion with the rear axle.

To prevent undue motion rearward of the bed, the rear edges of the standards are provided with inward projections d", which engage the upwardly-extending arms of the spring.

It wll'be evident from the description that I provide a brake simple in construction, reliable, efficient, and entirely automatic in its action.

The Wagon is easily detached from the brake-beam when the said bed is removed from the wagon, and the brake is left upon the running-gear and may then be operated by hand in the usual manner.

Having thus described my invention, what I claim as new, and desire to secure by Let ters Patent, is

1. In a wagon-brake, the combination of the front and rear axles, the couplingole, holsters supported on the axles, standar s on the bolsters, rollers journaled in the stand IOO ITC)

lards lon itudina'lly of the bolsters, rollers journale in the .individual standards longitudinally thereof, ya wagon-bed supported by the rollers, brackets on the bed, a cross-bar secured to the coupling-pole, bolts traversing the ends of the cross-bar, and provided with upper and lower eyes, yokes engaging the up er eyes, rollers journaled .in ,the arms of yo es and engaging the brackets, eyebolts en.- gaging the vlower `eyes, .-a brake-'beam ,secured to the eyebolts, brake-shoes on the .ends lof the brake-beam, bearings Ao n the .rear axle, a rock-shaft j ournaled in :the bearings, brackets kon the Isides of the `bed and .provided with periorations, upwardly-extending arms on the ends Yoi the rock-sliait for engaging Lthe brackets, a central depending arm v.on the rock-shaft, anda rod connecting the depending .arm with .the brake-beam.

2,. In a wagon-brake, -theeombination with the bed Aof ,a front and rear-axle, the couplingpole, bolsters ysupported on the axles, standards on the bolsters, rollers ljourna-led the standards longitudinally thereof, means connected with vthe ,standards for supporting .the wagon-bed, a brake-beam `depending from the bed, means for maintaining .the brakebearn in lfixed relation with respect to the coupling-pole, brake-shoes on the ends of the -brake-beam, `a rock-shaft journaled in the rear axles, brackets having a plurality of perlforations secured to the bed, arms on the rock-shaft for engaging the brackets, whereby l ythe longitudinal movement of Ithe Lbed may :rock theshaft, and a connection between the rock-shaft and the brake-beam whereby the rocking of the shaft may operate `the brake.

Ina Wagon-brake, the fcornbinationof a iront and a rear axle, bolsters having standyards supported-on the axles., a bed supported lon the bolsters, means whereby the bed move longitudinally Aupon .the bolsters, a brake-beam depending inem the bed, brakeshoes on the `ends of 4the brake-beam, a rockshat onrnaled on the ynear axle, brackets having .a plural-ity of periorations 4secured to the bed, arms on the rock-.shaft tor engaging the bracket, :and conneetions between the rock-shaft and the brake-beam whereby the rocking of the shaft may -operate the brake.

TORIS N. JOHNSEN. Witnesses:

E. A. HnssELTINE, `OLE THOMPSON. 

